The fate of these inorganiccompounds has not been certainly traced, but they give rise later on to the presence in the plant of various amino acid amides, such as leucin, glycin, asparagin, &c. That these are stages on the way to proteids has been inferred from the fact that when proteids are split up by various means, and especially by the digestive secretions, these nitrogen-containing acids are among the products which result. [Please select]
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The saurian monster of that strange age felt the hungry vortex swallowing him, which meanwhile enveloped him in deadly secretions, killing before devouring. [Please select]
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Later, fortunate innovators, whose race supplanted the laggards, discovered an inexhaustible nourishment, obtained without dangerous conflicts or laborious search: the sugary secretions of the flowers. [Please select]
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In amplexus the members of a pair sometimes become glued together by their viscous dermal secretions. [Please select]
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Among the most apparent of bodily responses are the various external secretions. [Please select]
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Constant over-production of these secretions through chronic states of worry is responsible for many a distressing symptom. [Please select]
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